

Later on, Lovelace get the attention of some humans to build a way out for the penguins. They then tries to keep the emperor penguins feed by bringing fish for them. The next day, Boadicea arrives with all adélie penguins, Lovelace and Sven.

Meanwhile, Mumble, Erik and Atticus goes fishing in an attempt to keep the emperor penguins feed, while Seymour searchs for a exit, desesperated to be with his son, Atticus, again. Mumble then sends Boadicea to Adélie-Land to find Ramón and Lovelace to bring as many adélies as they can. Later on, Emperor-Land is trapped by a massive glacier of ice and snow, with Mumble, Erik, Atticus and Boadicea as the only penguins to be free. Mumble goes to Adélie-Land to search for them (suspecting they could have followed Ramon), while Gloria, Seymour and Miss Viola still search for them at the Emperor-Land. After Erik and Atticus escape with their best friend, Boadicea, their parents, Mumble, Gloria, Seymour and Miss Viola (who is now Boadicea's mother) gets worried about them. Later on, their friends, Mumble and Erik gets into a conflict after Erik gets embarrassed by the other children because of Mumble's dance. Seymour is first seen at the Opening Medley singing with his son, Atticus. Additionally, both Mumble and Seymour became the honorary uncles of each other's son (Seymour became the honorary uncle of Mumble's son, Erik, and Mumble became the honorary uncle of Seymour's son, Atticus). Also, in the sequel, Seymour does not have any rivalry with Mumble any more, and they are good and close friends in the sequel, probably because their sons, Erik and Atticus, became best friends with each other. In this film, Seymour had found a female for him (who is not shown in the film) and have a son named Atticus. In the sequel, Seymour has a bigger role.

Seymour, however, shows no anger or sadness when Gloria chooses Mumble, probably because Mumble saved the penguins, and Seymour assumed Gloria deserved someone like Mumble. Mumble becomes a hero and gets married with Gloria. Then all the penguins (even Noah and the Elders) dance for the humans, who take footage of them and the United Nations decide to protect the penguins' food supply. All the penguins (except Noah and the Elders) starts training Mumble's, and the humans arrive in a helicopter. Mumble then convinced the other emperor penguins to dance for the humans, so they will give their fishes back. Mumble initially mistaken them for having children together (due to him having driven Gloria away to protect her from his dangerous journey), but Gloria explained that Seymour was just her assistant. Seymour and Gloria became singing teachers to some children emperor penguin. Seymour is later seen when Mumble returns to Emperor-Land from the acquarium. Also in the Graduation Concert, Seymour was in the front, with Gloria singing. After they go out to the water, Seymour accidentally push Mumble and Gloria, making them fall into the ocean again. Then Mumble appears to be chasing her as well. Seymour is later seen at the Graduation Day, when he chases Gloria, who join to be swimming like the others. Over the years, Seymour fell in love with Gloria, and developed a strong rivalry with Mumble, and they both were in love with her, and they rivalried over who would marry Gloria when they grown up. After Mumble failed to sing, he and the other students, except for Gloria, laughed at Mumble. However, Mumble nas a terrible singing voice. Seymour and Gloria manages to find their heartsongs, "The Message" and "Boogie Wonderland", respectively. Their teacher, Miss Viola, was teaching them about their heartsongs, and how important it was for the penguins. Seymour is first seen as a child at the penguin school, as a classmate and friend of Mumble and Gloria.
